Producing mosaic work



(No Model.)

A. H. HE'TTIOPL PRODUCING MOSAIC WORK.

No. 418,840. Patented Jan. 7, 1890.

N. PETERS, Pholwuthogmphan Walhinfihn, 04 c.

V UNITED 'r TEs- ATTENT TOFFICEQ AIIBERT H. HETTIGH, OF CHICAGO, ILLINOIS.

PRODUCING MOSAIC WORK.

SPECIFICATION forming part of Letters Patent No. 418,840, dated January 7, 1890. I Application filed J nly 1, 1889. Serial No. 316,190- (No specimems.)

To all whom it may co nccrn:

-Beit'known that I, ALBERT H. HnrrIcH, a subject of the King of YVtirtemberg, residing at Ohicago, in the countyof Cook and State of Illinois, have invented a new and useful 1 Improvement in Producing Mosaic Work, of

which the following is a specification.

My invention relates to improvements in the art of inlaying the hard substance (usually in the form of piecesof particular shape or shapes of different-colored stone) employed in producing the tcssellated work known as mosaic, and more particularly when applied to floors, 'Walls, and ceilings. The more common form of the pieces of stone employed is that of a cube, though my improvement may be practiced whatever be their form, the cube form being selected for illustration and description herein more especially for the sake of convenience. a

Two methods hitherto practiced and known to me of laying mosaic, andwith regard to which my method, hereinafter described, is designed to afford a material improvement, may be briefly described as follows:

As to the first, it consists in setting the pieces or cubes to produce a desired design directly upon the foundation to be ornamented (as a floor) and previously plastered with cement, and when the work is finished even ing it by running a heavy roller over it. This method is not only arduous, but it prevents that degree of solidity of the work which will obviate its becoming unevenwithtimeanduse.

- The second of the two methods referred to then properly laid and cemented together and upon thefoundation to be decorated by the mosaic. I

My improvement involves features more closely resembling the method last described than the other, but is designed to facilitate the work and render itmore even and dura ble; and it consists, in its broadest sense, in forming the mosaic work in blocks, to be subsequently laid on the foundation to be ornamented by setting the pieces of material into net-work having a mesh of desired configuration against a base, and then cementing the pieces together by introducing into the interstices between them a suitable cement.

My invention further consists in more detailed steps, which the nature of the work may require me to observe.

I In the accompanying drawing I illustrate, as definitely as I am enabled to, my method by showing in a perspective view a broken rectangular frame A, (which should be formedof metal,) supporting network D, (shown partly broken away,) the mesh of which is of proper shape andsizeto correspond more or less accuratelywith the shape or shapes and size or sizes of the pieces of material B, (shown to be cubiforn1,) and a base 0, of suitable material such as stone or metal-to afford a smooth and flat surface, and which fits inside first sets the frame A (or net-work) over the base 0, and then, following a design to be reproduced in mosaic, sets the cubes B by inserting them in the proper places through or into the mesh of the net-work with their face ends against the surface of the base. When thework is finished or the net-work filled, the proper cement is poured or otherwise applied to the broken surface presented inside the frame by the base ends of the cubes and To practice my improvement the" operator spaces between them produced by the twine or the like, thecement being introduced to the desired depth (which, according to the particular cement used, may be to the surface of the base 0) between the cubes.

At 09 in the drawing is shown, by way of illustration, a rectangular block produced by the setting of the cubes in.;the operation, the interstices being clearly represented as they appear before the application of the cement, while at y a similar block is shown after the cement has been applied and entered between the interstices, the reason for. representing the net-work as broken away being to avoid confusion and permit more clear illustration. When the work is finished and the cement applied, as aforesaid, and sufficiently hardened, if the net-work be formed with twine or wire, it may be out where it passes through? the frame to release the-latter andpermit it; to be separated from the mosaic block, the twine or wire then remaining embedded be tween the cubes; but if the network be formed with cast or perforated metal itis'preferred, after the cement hasfbecome suiiieientlyhard to permit, to withdraw it,,whichmaybe done by inverting'theframe and raising the ,network out of the interstices, for which lastnamed purpose, however, care should be taken in applying the cement to prevent it from entering the intersticesto a depth sulficient to reach the net-work. If the cementhas not been caused to filltheentire depth of the interstices, the block, when ready to be han dled,is inverted and more cement applied to the face. side tov enter between the cubes. The operation thus permits the ready and rapid production, in any desired design, of blocks of mosaic workpresenting perfectly and-last ingly even. surfaces, and which, when produced, are ready to be laid to cover the fonndation (floor, wall, or the like) tobe ornamented, thereby rendering the work of laying more rapid, perfect, and durablethan when performed by either of the methods referred to as being improved upon by my invention.

What I claim as new, and desire to secure by Letters Patent, is

1. The improvement in producing mosaic work, which consists in forming blocks there of by setting-pieces of the material employed into net-Work against a base and cementing the pieces together, substantially as described.

2- 'I.he improvementin producing mosaic work, which consists in forming blocks thereof by setting pieces of the material employed into net-work against a base, then introducing at one side of the work cement into the interstices betweenthe pieces, then removing thework-from the base and introducing at theopposite side cement between the interstices, substantially as described.

3. The improvement in prodncingmosaic work, which. consists ingforming blocks thereof by setting the material employed into netvworkinside aframe with the faces of the said piecesagainst an even base, then introent into the interstices between the pieces,

then removingthe Work from the frame and J. W. DYRENFORTH, M, J. BoWERs.

ducing at the exposed side of the Work cem- 

